Caster.



No. 801,742. PATENTBD OCT. 10, 1905.

J. G. REVELS.

GASTER.

APPLICATION FILED AUG 25,1904` 154 l if JACOB G. REVELS, OF PORTLAND, MICHIGAN.

CASTER.

Specification of Letters Patent.

Patented Oct. 10, 1965.

Application filed August 25,1904. Serial No. 222,075.

To @ZZ when@ it 71mg/ cmwern:

Be it known that l, JACOB G. REVELS, a citi- Zen of the United States, residing at Portland, in the county of Ionia and State of Michigan, have invented certain new and use ful Improvements in Casters, of which the following is a specification.

This invention relates generally to casters, and particularly to one adapted for temporary attachment to heavy articles of furniture or the like to facilitate their movement.

The objects of the invention are without the employment of screws or equivalent fastening means supplemental to the caster and in a ready. simple, and expeditious manner to attach the caster to the article to be moved; to permit of its removal with but slight labor and without danger of mari-ing the article; to insure positive holding of the caster when once positioned; to construct its parts in such manner as while reducing the cost of its production to a minimum to insure long continual use without danger of derangement or breakage, and generally to improve and increase the utility of such devices.

Vith the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a temporary caster, as will be hereinafter fully described and claimed.

ln the accompanying drawings, forming a part of this specification, and in which like characters of reference indicate corresponding parts, there are illustrated two forms of embodiment of the invention, each capable of carrying the same into practical operation, it being understood that the elements therein exhibited may be varied or changed as to shape, proportion, and exact manner of assemblage without departing from the spirit thereof.

In the drawings, Figure 1 is a view in elevation of a caster constructed in accordance with the present invention and exhibiting the same attached to a piece of furniture. Fig. 2 is a view in vertical longitudinal section. Fig. 3 is a viewin vertical transverse section. Fig. 4 is a view in elevation of a modied form of device.

Referring to the drawings and to Figs. 1, 2, and 3 thereof, 1 designates the head of the caster, which is provided in its upper face with a T-channel 2 and in its under face with vscrew and the orifice 15 being smooth.

a race 3, in which are housed a plurality of ball-bearings 4 to be engaged by a casterball 5, the said under face being provided witha depression 6 to receive the upper portion ball 5. The ball-bearings and caster-ball are held assembled with the head by an annulus 7, formed integral with a plate 8, secured to the head by screws 9, theplate being approximately rectangular to conform to the contour of the head.

The channel 2 is engaged by the T-shaped shanks 10 of a pair of clamping-jaws 11 and 12, the opposedfaees of which are in this instance disposed in parallelism, as shown in Fig. 2, and the outer faces of which are inclined outwardly toward the shanks to impart the requisite stability. The shanks are each provided with a longitudinal orifice to receive a clamping-screw 13, the oriliee 14 in this instance being' threaded to engage the The screw is provided with a shoulder' 16. seated in a recess in the shank of the jaw 19., and with a polygonal wrench-head 17. The shanks slide freely in the channel 2, and in order to prevent their accidental separation therefrom each wall of the channel is provided intermediate of its length witha stop or abutment 18, as clearly shown in Fig. 2.

In order to cause the caster to be positively held assembled with the article with which it is combined and also to prevent the head having any sliding movement relative to the jaws, the opposed faces of the latter and the upper faces of the former are provided with spurs or prongs 19 and 20, respectively, of which there may be any desired number.

In the use of the device above described the jaws are separated a sufficient distance to receive the object 21 to be moved, the weight of which will cause the spurs 20 to sink into it. The screw 13 is then turned by a wrench or the like, causing the jaws to approach the object and the spurs 19 to be embedded therein. I/Vhen thus positioned, the caster will be positively held in place during use. The caster may be readily removed by turning the screw in the direction to loosen the jaws.

The form of embodiment of the invention above described is adapted for use in connection with polygonal objects, and to extend the usefulness of the device the same is capable of application to circular objects, as shown in Fig. L1, to accomplish which the clampingjaws 22 are concaved or semicircular in crosssection. With this feature and the fact that the head 23 and plate 24 are circular in crosssection the device is the same in construction and operation as that first described.

It will be seen from the foregoing description that the present device, while exceedingly simple of construction, will be found of the highest eiciency and durability in use and may be manufactured without the necessity of the employment of expensive machinery for the purpose. Y

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

l. A caster comprising a head, a rolling device carried by and supporting the head,clam ping devices also carried by the head and movable thereon, and an actuator for the clamping devices.

2. A caster comprising a head, a rolling device carried by and supporting the head,clamp ing-jaws also carried by the head, and a clamping-screw engaging and coperating with the said clamping-jaws.

3.' A caster comprising a head having a T- channel in its upper face, a rolling devicecarried by and supporting the head, clampingjaws having T-shaped Shanks arranged and movable in the channel, and an actuator for the clamping-jaws. v

4. A caster comprising a head including a ball-caster and roller-bearings, clamping devices carried by the head and including puncturing means, and an actuator for the clamping devices.

D 5. A caster comprising a head having a T- channel in its upper face, a rolling device carried by and supporting the head, clampingjaws having T-shaped Shanks arranged and movable in the channel, and a clamping-screw extending through and coperating with the Shanks of the jaws,

6. A caster comprising a head having puncturing means, and transversely-adjustable clamping elements carried by the head and having their` opposed faces provided with puncturing means.

7. A caster comprising a head having its upper face provided with a T-channel and with spurs, clamping-jaws having T-shaped Shanks mounted in the channel and provided on their opposed faces with spurs, and a clampingscrew coperating with the Shanks.

8. A caster comprising a head having its upper face provided with a T-channel having abutments therein and with spurs, clampingjaws having T-shaped shanks mounted in the channel and provided on their opposed faces with spurs, and a clamping-screw coperating with the shanks.

In testimony whereof I aiiX my signature in presence of two witnesses.

JACOB G. REVELS.

Witnesses:

JUSTIN L. SUTHERLAND, NORMAN T. SANDBUi-m. 

